—technical warnings often feel like a cryptic dialogue between the hardware and the software. One of the more common, yet misunderstood, messages is:
To prevent a total crash or an "Out of Memory" error, V-Ray automatically scales back the amount of work (samples) it assigns to each thread to fit the scene into your remaining VRAM. While the scene will likely still render, it will be significantly slower because the hardware is not operating at full efficiency. How to resolve it
If your GPU has low VRAM (e.g., 4GB), you will hit this "magic number" limit more frequently.
: The fact that the software automatically reduces this setting implies that the original setting was considered too high for the current hardware or scene complexity. This adjustment prevents the application from crashing or using too many resources.
Warning Num Samples Per Thread Reduced To 32768 Rendering Might Be Slower Jun 2026
—technical warnings often feel like a cryptic dialogue between the hardware and the software. One of the more common, yet misunderstood, messages is:
To prevent a total crash or an "Out of Memory" error, V-Ray automatically scales back the amount of work (samples) it assigns to each thread to fit the scene into your remaining VRAM. While the scene will likely still render, it will be significantly slower because the hardware is not operating at full efficiency. How to resolve it
If your GPU has low VRAM (e.g., 4GB), you will hit this "magic number" limit more frequently.
: The fact that the software automatically reduces this setting implies that the original setting was considered too high for the current hardware or scene complexity. This adjustment prevents the application from crashing or using too many resources.
